A geographical data base
1984 ◽
Vol 431
(1 Infrastructur)
◽
pp. 316-333
1987 ◽
Vol 1
(2)
◽
pp. 101-118
◽
Keyword(s):
1998 ◽
Vol 8
(1)
◽
pp. 11-11
Keyword(s):
1990 ◽
Vol 45
(5)
◽
pp. 676-676
◽
Keyword(s):
1981 ◽
Vol 128
(5)
◽
pp. 257
◽